The Starke Round Barn, 1639 US Hwy 136, about 4½ miles east of Red Cloud near the old town of Amboy, was built in 1902–03 by the Starke brothers, Conrad, Ernest, William and Chris. It is 130 feet across and three stories high, with hay on the top floor, machinery on the main floor and stock below, and is billed as the largest round barn in Nebraska. It was listed on the National Register in 1972. It stands on a working farm: guided tours only, by appointment with the owner.